let threejs=`
各种APi
#$
//打印
threejs
#$
//_____________________________________
//球体
//材质可为着色器
      var sphere = new THREE.Mesh(
new THREE.SphereGeometry(20, 20),
new THREE.MeshLambertMaterial({color:0xff0000})//材质设定
                );
                scene.add(sphere);
                sphere.position.set(0,0,0);
#$
  //_____________________________________  
//添加顶点法线显示
var vertexNormalsHelper = new THREE.VertexNormalsHelper( mesh, 10 );
	mesh.add( vertexNormalsHelper );
#$




`;
export{
    threejs
}
